EXHIBIT INDEX

(a)(4)   Articles of Amendments to the Articles of Incorporation, dated
         April 21, 2006.

(d)      Investment Management Services Agreement, amended and restated,
         dated May 1, 2006, between Registrant and RiverSource Investments,
         LLC.

(h)(8)   Agreement and Plan of Reorganization between AXP Income Series,
         Inc., on behalf of RiverSource Selective Fund, and AXP Fixed Income
         Series, Inc., on behalf of RiverSource Diversified Bond Fund, dated
         Nov. 10, 2005.

(q)(1)   Directors/Trustees Power of Attorney to sign Amendments to this
         Registration Statement, dated April 12, 2006.